Solar installations in Sierra County, CA
67 recorded installations in Sierra County, California — capacity, prices and the installers doing the work.
At a glance
Sierra County, California has 67 recorded solar installations totalling 549 kW of capacity — the 55th-highest count among the 58 California counties with records, and under 1% of the state total. That is about 3.2% of the county's 2,099 housing units, against 16.6% statewide. The median installed price is $4.54/W before incentives, roughly in line with the California median of $4.26/W.
Dataset updated . Sources: LBNL Tracking the Sun + city permit records + state programs + USGS/EIA utility-scale.
Search every recorded installation in Sierra County by installer, size, date and equipment.
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Top installers in Sierra County
Growth
Installations by year
How does Sierra County compare with the rest of California?
The median recorded system in Sierra County is 6 kW, roughly in line with the state median of 5.92 kW. 7% of installations here are third-party owned (lease or power-purchase agreement), compared with 29% across California. 16 systems (24%) of the county's records include battery storage, against 16% statewide. By share of housing units with a recorded system, Sierra County ranks 50th of 57 California counties with at least 10 installations.
How has solar adoption changed in Sierra County?
The earliest recorded installation in Sierra County dates to 2002. The busiest year on record is 2021, with 8 installations. 2025 has 5 recorded installations so far. The county's cumulative total rose from 38 at the end of 2020 to 67 today. Recent years fill in as state programs and permit offices report, so the latest counts are provisional.
Who installs solar in Sierra County?
California Solar Electric Systems has the most recorded installations in Sierra County (11, 16% of the county's records). Other active installers here include California Solar Electric, Pioneer Solar Services and Sierra Solar Systems. Installers based anywhere in California are listed in the state installer directory.
Frequently asked questions
How many homes have solar in Sierra County?
PanelCensus records 67 solar installations in Sierra County, California (549 kW of capacity) — about 3.2% of the county's 2,099 housing units (U.S. Census ACS). Coverage depends on California's public reporting, so the true total is likely higher.
How much does solar cost in Sierra County?
The median installed price for recorded systems in Sierra County is $4.54/W before incentives; the median system is 6 kW. The California median is $4.26/W.
Who installs solar in Sierra County?
The most active recorded installers in Sierra County are California Solar Electric Systems (11), California Solar Electric (7) and Pioneer Solar Services (4).
How much of the solar in Sierra County is leased?
5 recorded installations (7%) in Sierra County are third-party owned — a lease or power-purchase agreement, compared with 29% across California.
How big is a typical solar system in Sierra County?
The median recorded system in Sierra County is 6 kW, against 5.9 kW for California as a whole.
More solar data near Sierra County
- Solar in California· 2,413,021 installations
- Solar installers in California
- Solar in Siskiyou County· 234 installations
- Solar in Lassen County· 231 installations
- Solar in Alpine County· 159 installations
- Solar in Inyo County· 159 installations
- Solar in Trinity County· 52 installations
- Solar in Modoc County· 32 installations
County assignment is derived from installation ZIP codes via the Census 2020 ZCTA↔county crosswalk (primary county by land-area overlap) — approximate at county boundaries. Market penetration = recorded installations ÷ housing units (U.S. Census Bureau ACS 5-Year, Table B25001); it undercounts where dataset coverage is partial. See methodology.
About this data
Source: Lawrence Berkeley National Laboratory's Tracking the Sun, merged with city permit records, state incentive programs and the USGS U.S. Large-Scale Solar Photovoltaic Database / EIA-860 plant registers, as published October 10, 2026 — PanelCensus refreshes it as each source publishes new records. See the methodology for how records are matched, cleaned and scored.
Cite as: PanelCensus, “Solar installations in Sierra County, California”, https://panelcensus.com/solar/california/sierra-county (data as of October 10, 2026).